Patents by Inventor Robert N. Ferguson

Robert N. Ferguson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Wrapper for a smoking article
    Patent number: 5450862
    Abstract: The sidestream smoke associated with a cigarette or cigarette-like smoking article is reduced by wrapping the tobacco in a paper wrapper having an additive, such as an organic acid, an acidic or neutral salt or an organic acid in combination with an acidic salt or neutral salt added thereto.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: September 19, 1995
    Assignee: Philip Morris Incorporated
    Inventors: Sheryl D. Baldwin, Gordon H. Bokelman, Robert N. Ferguson, Barton Floyd, Barbro L. Goodman, Robert M. Rogers, Edward B. Sanders, Susan S. Tafur
  • Extraction process using a novel organic acid as a liquid ion exchanger
    Patent number: 5230802
    Abstract: This invention provides novel organic acids which exhibit utility as liquid ion exchanges suitable for use in an invention solvent extraction process. Illustrative of an invention organic acid is a compound corresponding to the formula: ##STR1## where each of R.sub.1 and R.sub.2 is a C.sub.3 -C.sub.16 branched alkyl group.
    Type: Grant
    Filed: June 24, 1992
    Date of Patent: July 27, 1993
    Assignees: Philip Morris Incorporated, Philip Morris Products Inc.
    Inventors: Robert N. Ferguson, Charles R. Howe, Henry V. Secor, Jeffrey I. Seeman
  • Wrapper for a smoking article
    Patent number: 5152304
    Abstract: The sidestream smoke associated with a cigarette or cigarette-like smoking article is reduced by wrapping the tobacco in a paper wrapper having a burn modifier, such as an acidic salt, added thereto. Preferably the paper wrapper has a high basis weight and low porosity.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: October 6, 1992
    Assignee: Philip Morris Incorporated
    Inventors: Gordon H. Bokelman, Sheryl D. Baldwin, Susan S. Tafur, Robert N. Ferguson, Barbro L. Goodman, Robert M. Rogers